Run up checks with a constant-speed propeller
Say you've set 1800 RPM with the throttle (pitch full fine of course). You do a mag check & the RPM drops by about 125 RPM when you go from Both to L etc. How come the constant speed propeller doesn't adjust immediately back to 1800 RPM when your on the L mag etc?
Is it because the prop is fully fine? FOR ARGUMENTS SAKE say you were at 1800 RPM on the ground & pulled out the propeller control (coarsened the prop) to say 1500 RPM then you went to the L or R mag or pulled out the carburettor heat would the RPM maintain 1500 RPM in that instance?